Mattress



Jan. 18, 1,938. E. ROSE 2,106,065

MATTRESS Filed oct, 24; 195e 4 3 v INVENTO ,.whd.

Patented Je. la, lass .PATENT ori-lcs- MA'rTnEss Edward Rose, Newton, 'lll-ass., assignor to Dole- Derry Company, Newton, Mass., a corporation of Massachusetts Application oculta- 24,- 193s', serial No.r itam 1 claim. (ci. s sss) This invention relates to mattresses and is more especially concerned with those designed for use in cribs and cots for small children,

` The invention aims to improve the construc- 6 tion of mattresses with a view to providing eifective protection for the internal structure of'the mattress against wetting, while at the same time producing an article which can be manufactured economically, and which can be easily vcleaned v:lil and thus kept in a thoroughly sanitary condition without the use of the waterproof mattress covers, pads, and the like, which have been commonly used heretofore to protect the mattress.

The nature of the invention `will be readily un 1| derstood from the following description when read in connection with the accompanying drawing, and thenovel features will be particularly pointed out in the appended claim.

In `the drawing,

I ,g Figure l is a perspective view of a mattress embodyinsthe invention;

Fig. 2 is a vertical, sectional view, partly in elevation. of a portion of the mattress shown in Fig. l; and Fig. 3 is a sectional view on a large scale through one of the tufts and the adjacent portion of the mattress.

The mattress shown in the drawing may be of any common or usual construction so far as 30 its general nature is concerned. That is, it may .be of any suitable dimensions, may either have internal springs, or be filled solid with .the usual mattress filling materials, such as hair, cotton felt, or the like. It differs, however, from the ordinary mattresses in having an envelope or tick 2 made of waterproof sheet material. Such material may consist, for example, of rubberized fabric, or of sheeting or similar goods coated with other waterproof compounds. Avery satisfac- 40 tory material for this-purpose consists of fabric coated with a solution of some of the cellulose esters, such as cellulose acetate, in which a suilicient proportion of placticizer is included to make the coating very flexible. Coating compounds of this nature are readily obtainable in the open market. In order to hold the mattress in shape, it is tufted. In the particular construction shown the tufts consist of buttons 3, but any other suitable f 50 form of tuft can be used.y It is desirable, however, that the tufts be waterproof so that they will not absorb and hold moisture in any substantial volume'. These tufts are distributed at suitable-intervals over the top and bottom surfaces of the mattress and rare arranged in pairs in the usual Way. each top tuft being secured to a bottom one by a string, tape, cord, or the like, such a connecting means being hereinafter designated by the term cord, and thesev elements being indicated in the drawing vat I. 5 Even \though the envelope 2 is impervious to water, nevertheless if water does rest on the top of the mattress, it will work down into the body of the mattress through the holes necessarily provided for'thepassage of thecords t that secure the top and bottom tufts together.

-When such leakage occurs it is even more .seriouslin a mattress of this type than in one having the usual case or envelope made of ticking since a mattress of the latter type can be dried out, 1,5

whereas one like that disclosed in the present application is very diiiicult to dry. In order to prevent the entrance of water into the body of the mattress in the manner just described, I introduce a sealing medium between the tufts 3 and 20 the waterproof envelope which eiectually closes the holes under the tufts. In the construction shown this sealing medium consistsv of a cement which will bond both to the tufts and also to the waterproof coating of the envelope. Refer- 25 ring to Fig. 3, the waterproof coating on the envelope 2 is indicated at a. Secured to the portion of this coating underlying the tuft 3 and adjacent to it, is a body 5 of cement which is adhesively united both to the coating and also to 30 the tuft. The preferred practice is to use a ce.- ment of the same general nature as the coating a. For example, if this coating consists of a lacquer, such as one having a cellulose acetate base, the

cement may be of exactly the same material. In 35 fact, the cement may consist of the coating compound. After-the mechanical operations on the mattress have been completed, a small quantity of this cement can be applied under each of the tufts and around the cord by means of a dropper or any suitable implement having a nozzle adapted tofacilitate such application. When this operation has been completed on one side the mattress vis allowed to rest long enough for the cement to harden, and subsequently the opposite side is treated in the same way. After the application of the cement, each tuft rests in a small puddle of cement which, upon hardening, secures the tuft firmly to the envelope and seals the crevice between the tuft and the envelope against the entrance of water.

, If desired, the mattress may be provided with one or more screened'ventiiating openings. such as that shown at 6, Fig. 1, these openings being s placed in the side of the mattress where there is practically no danger of water entering them.

'I'he invention is also applicable with advantage to mattresses o1' the common comercial types in which a fabric ticking,.or other cover, per-` vious towater, is used for the envelope. By cementing the tufts to the envelope in the manner above described, each tuft is permanently `held snugly against the surface of the envelope even cidents of this character are avoided by cementing the tufts in place, as above described.

While I have herein shown and described a preferred embodiment of my invention, it will be understood that minor changes may be made within the spirit and scope of the invention.

Having -thus described my invention, what I desire to claim as new is:

A mattress including a waterproof top sheet, tufts located at suitable intervals on said sheet and secured in place by cords passing through holes in said top sheet, said tufts being secured to said top sheet by 4waterproof cement cooperating with the tufts to form a seal against the passage of water'through said holes.

EDWARD ROSE. 

